Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Hydraulic mining on twin cities sewer tunnels
In excavation of Minneapolis-St. Paul sewer tunnels faces of headings are broken down by air jets, power chisels and occasional blasting; pulverized sand-rock muck in water suspension is pumped from heading to top of shaft or to portal by centrifugal pumps and boosters; cross-sections of tunnels; sand pumping; trimming invert.
Hydraulic mining on twin cities sewer tunnels
In excavation of Minneapolis-St. Paul sewer tunnels faces of headings are broken down by air jets, power chisels and occasional blasting; pulverized sand-rock muck in water suspension is pumped from heading to top of shaft or to portal by centrifugal pumps and boosters; cross-sections of tunnels; sand pumping; trimming invert.
Hydraulic mining on twin cities sewer tunnels
Eng News-Rec
Engineering News-Record ; 115
1935
5 pages
Aufsatz (Zeitschrift)
Englisch
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